Hollow wall construction



A. F. LEVITT.

HOLLOW WALL CONSTRUCTION.

APPLICATION FILED JAN. 2. I920- l ommg Patented Feb. 21, 1922.

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A TTORNEKS ARTHUR F. LEVITT, OF LOS ANGELES, CALIFORNIA.

HOLLOW WALL CONSTRUCTION.

Specification of Letters Patent. Patented Feb. 21 192% Application filed January 2, 1920. Serial No. 348,972.

Toall whom it may concern:

Be it known that I, ARTHUR F. Lnvrrr, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Hollow Wall Constructions, of which the following is a specification.

My invention relates generally to new and useful improvements in wall construction and more particularly to hollow blocks that are utilized in the formation of building walls and like structures, the principal object of my invention being to provide a relatively simple and easily produced hollow block that is of irregular polygonal outline, in order that it may be utilized with blocks of regular form, at the corners of bullding walls and the like, for filling the irregular spaces formed between the wall blocks at the corners of the structure.

Other objects of my invention are to provide a block which is constructed with mortar receiving chambers that are filled during the erection of the wall, thereby securing a firm and substantial bonding or tying to-' gether of the hollow blocks of which the wall is formed, and, further, to provide an irregular hollow block that is strong and substantial and very effective in performing its intended functions.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of parts that will be hereinafter more fully described and claimed, and illustrated in the accompanwing drawings, in which Fig. 1 is a perspective view of a portion of a wall formed of hollow blocks and which includes irregular blocks of my improved construction, the same being located adjacent to a corner in the wall structure.

Fig. 2 is a perspective view of a hollow building block constructed in accordance with my invention.

Fig. 3 is a plan view of the corner portion of a wall structure and showing a hollow block of my improved construction in proper position within said structure.

Fig. 4 is a plan view similar to Fig. 3 and showing a block of my improved construction in position adjacent to the corner of the wall structure.

The principal wall forming member consists of a block designated by the numeral 2 and having a plane side wall 3 from which extends laterally right angular end walls 4-4 from which spring outwardly convergently inclined walls 5-5 meeting at the point 6 which preferably is substantially central with respect to the length of the wall 3. These walls form a chamber 7 whereby when the blocks 2 are erected in a wall air spaces are secured throughout the length and height of the wall.

This block 2 is also provided with an inner partition 8 extending from top to bottom edges and preferably having relatively inclined wall portions 9-9, the angle of which is substantially equal to the angle between the walls 55, so that when the blocks are being erected in courses, as shown in Fig. 1, the angular chamber formed between the portion 8 and the adjacent portions of the walls 55 and designated at 10 will vertically register throughout the superposed courses and may be filled with 'cementitious material to bind the blocks and the courses substantially together.

As plainly shown in Figs. 3 and 4, the blocks are arranged in each course in reversed and alternate positions, one series having their plane surfaces or walls 3 alined to form the outside of the Wall W, Whilst the oppositely disposed series of blocks are applicable to form the inside face of the wall, the salient points 6 of each of the blocks matching closely the reentrant angle that is formed by adjacent inclined faces 55 when adjacent end walls 4-4 are abutted. From this it will be seen that the blocks are reversible, and when laid as just described form parallel outer and inner plane faces for the wall W.

At the corner C ofthe wall, an irregular polygonal space is formed between the wall blocks 2, and my improved block is designed to fill this" irregular space.

In Fig. 2, I have illustrated my improved block, the same being generally indicated by the numeral 12, said blookbeing of such outline or contour in plan view as to fill the polygonal space which will occur by the assemblage of a set of blocks 2 in the corner of the wall, this space being designated by the surroundin walls a, b, 0 and d, F i 3, the outer openmg of which is in the p ane of the outer surface of the wall W.

As plainly shown in Fig. 2, the block 12 is provided with an outer face forming wall 13 at one end of which is provided a right angular end Wall 14, the other end of the 50 ing overlapped to break joints. This overkey block being provided with an angular side 15 of substantially equal length to one of the inclined facets a so that the key block will abut in a right angular position in the corner of a wall against the projecting surface of the last Wall block in a course as indicated in Fig. 3, and the key block is provided with an abutting face 16 parallel to the main wall 13 and designed to abut against the adjacent end wall 4 at the position designated at b, Fig. 3. In this position the key block 12 will have a projecting portion having on its inner face or side a facet 17 of an angle substantially equal to the angle of a side 5 of another wall forming block as c, Fig. 3, when applied thereto in the continuation of the corner construction. The overhang of the key block 12, Fig. 3, beyond the inner wall surface f is, in the present case, substantially equal to one-half of the length of the common wall forming block 2 and therefore the remaining portion of the wall and courses can be extended by the proper laying of the several blocks 2 in either direction from the corner or toward the corner,

as the case ma be.

Assuming t e completion of one hori zontal course, as in Fig. 3, including a corner outline, the mason then lays the next course, but in this case the key block will be placed in a position on the other side of the corner, as indicated at g, Fig. 4:, this being due to the fact that to secure the proper interlocking of the wall courses and the blocks of each course, the wall, formin blocks 2 are vertically staggered on each of the courses as will be seen from the relation of the block designated h, Fig. 1, with respect to the subjacent blocks 11 and is, Fig. 1; in this case the block designated h overlapping equal portions of the lower blocks whose ends are abutted. Also in vertically above the corresponding opening 10 of the lower block as Z in Fig. 1, these two blocks being arranged withtheir medial transverse planes in a common vertical plane, and the salient faces of the walls bein each course are effectually bonded together.

During the course of construction of the wall, the mason introduces suitable plastic material or cement into the vertically alined lozenge-shaped openings 10 this forming a substantially continuous intermediate wall,

- in combination with the abutting faces of the mner and outer series of blocks in each course, and yet the desired hollow wall construction is obtained because each of the blocks is provided with the chamber 7 extending from its top to its bottom edges.

To secure the vertical bonding of the key blocks 12 in their respective positions during the construction of the wall, each of the blocks is provided with chambers 19 and 20 sodisposed as to register with the chambers of subjacent blocks 2 and there fore permit the continuous insertion of plastic material to fill the vertical spaces or pockets as above described.

Various changes may be made without departing from the spirit of my invention as claimed.

I claim:

1. A key block adapted to fill the irregular space between the adjacent blocks of a course at the corner of a wall structure of the character described, said key block comprising a polygonal body formed with substantially flat parallel top and bottom faces, an elongated outer side face, a relatively short inner side face that is disposed substantially parallel with said elongated faces.

2. A key block adapted to fill the irregular space between the adjacent blocks of a course at the corner of a wall structure of the character described, said key block comprising a polygonal body formed with substantially flat parallel top and bottom faces, an elongated outer side face, a relatively short inner side face that-is disposed substantially parallel with said elongated outer side face, an end face disposed substantially at right angles to the parallel side faces, an inclined face between said end face and the relatively short inner side face, an inclined end face between the opposite ends of the substantially parallel side faces, and said body being provided with vertically disposed openings.

3. A key block adapted to fill the irregular space between the adjacent blocks of a course at the corner of a wall structure of the character described, said key block comprising an elongated outer wall, a relatively short inner wall disposed substantially parallel with said outer wall, an end wall extending inwardly from one end of the elongated outer wall and disposed substantially at right angles thereto, an inclined wall extending from the inner end of said end wall to the adjacent end of the inner wall and an inclined end wall connecting the opposite ends of said outer and inner side walls.

, 4. A key block adapted to fill the irregwall extendin from the inner end of said ular space between the adjacent blocks of a end wall to t e adjacent endof the inner course at the corner of a wall structure wall, an inclined end wall connecting the of the character described, said key block opposite ends of said outer and inner side 5 comprising an elongated outer wall, a relawalls and partition walls arranged between 15 --tively short inner wall disposed substantialliy said side and end walls. parallel with said outer wall, an end wal In testimony whereof I have signed my extendin inwardly from one end of the name to this specification; elongate outer wall and disposed substanv 1e tially at right angles thereto, an inclined ARTHUR F. LEVITT. 

